TekPhone is a SIP (Session Initiation Protocol) VoIP Softphone that provides User Agent (SIP-UA) functions (Based on RFC 3261) runs under Windows (Vista, 7/8/10/11, 2008-2022 Server).


  • Simple, easy to use interface.
  • Supports (Only) G.711 A - Mu law codecs, RFC 2833/SIP INFO/Inband methods for DTMF digit delivery.
  • Supports UPnP for NAT traversal. You can also set external IP address manually.
  • TekPhone can record incoming audio if away mode selected. You can specify your own welcome message.
  • ENUM (RFC 37612).


Follow us